diff --git a/server/plugins-available/apache2_plugin.inc.php b/server/plugins-available/apache2_plugin.inc.php
index 014fc4aea5eb0ad4a22cd4c7112391e88506ba20..eb6a7159ec957c388c5dd53615575f9974271297 100644
--- a/server/plugins-available/apache2_plugin.inc.php
+++ b/server/plugins-available/apache2_plugin.inc.php
@@ -3013,7 +3013,7 @@ class apache2_plugin {
 			$monit_content = file_get_contents($conf['rootpath'] . '/conf/hhvm_monit.master');
 		}
 		
-		if($data['new']['php'] == 'hhvm' && $data['old']['php'] != 'hhvm' || (isset($data['old']['custom_php_ini']) && $data['new']['custom_php_ini'] != $data['old']['custom_php_ini'])) {
+		if($data['new']['php'] == 'hhvm' && $data['old']['php'] != 'hhvm' || ($data['new']['php'] == 'hhvm' && isset($data['old']['custom_php_ini']) && $data['new']['custom_php_ini'] != $data['old']['custom_php_ini'])) {
 
 			// Custom php.ini settings
 			$custom_php_ini_settings = trim($data['new']['custom_php_ini']);
diff --git a/server/plugins-available/nginx_plugin.inc.php b/server/plugins-available/nginx_plugin.inc.php
index 748a61f98c469ec14181ff1b389868a11a34ea8a..2151008aa1c65688e86d8e316f5a3b8300002a29 100644
--- a/server/plugins-available/nginx_plugin.inc.php
+++ b/server/plugins-available/nginx_plugin.inc.php
@@ -2628,7 +2628,7 @@ class nginx_plugin {
 			$monit_content = file_get_contents($conf['rootpath'] . '/conf/hhvm_monit.master');
 		}
 		
-		if($data['new']['php'] == 'hhvm' && $data['old']['php'] != 'hhvm' || (isset($data['old']['custom_php_ini']) && isset($data['new']['custom_php_ini']) && $data['new']['custom_php_ini'] != $data['old']['custom_php_ini'])) {
+		if($data['new']['php'] == 'hhvm' && $data['old']['php'] != 'hhvm' || ($data['new']['php'] == 'hhvm' && isset($data['old']['custom_php_ini']) && isset($data['new']['custom_php_ini']) && $data['new']['custom_php_ini'] != $data['old']['custom_php_ini'])) {
 
 			// Custom php.ini settings
 			$custom_php_ini_settings = trim($data['new']['custom_php_ini']);